Five years after the March 2011 nuclear calamity started at the Fukushima No. 1 power plant, Tokyo Electric Power Co.'s efforts to contain the radioactive water at the site still makes headlines.

But not much is known about the daily lives and operations of some 7,000 workers at the plant engaged in decommissioning and other tasks.

To offer a glimpse of the workplace, Kyodo News followed Yasuki Hibi, 52, who heads major contractor Kajima Corp.'s civil engineering office at the wrecked plant, for a day last month. His office takes on a number of projects, including processing contaminated water and highly radioactive rubble.